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<a name="1" href="#1">1</a>   <em class="comment">/*</em>
<a name="2" href="#2">2</a>   <em class="comment"> * Copyright (c) 2008  Jonhnny Weslley</em>
<a name="3" href="#3">3</a>   <em class="comment"> * </em>
<a name="4" href="#4">4</a>   <em class="comment"> * This program is free software; you can redistribute it and/or modify it</em>
<a name="5" href="#5">5</a>   <em class="comment"> * under the terms of the GNU General Public License as published by the Free</em>
<a name="6" href="#6">6</a>   <em class="comment"> * Software Foundation; either version 2 of the License, or (at your option)</em>
<a name="7" href="#7">7</a>   <em class="comment"> * any later version.</em>
<a name="8" href="#8">8</a>   <em class="comment"> * </em>
<a name="9" href="#9">9</a>   <em class="comment"> * This program is distributed in the hope that it will be useful, but WITHOUT</em>
<a name="10" href="#10">10</a>  <em class="comment"> * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or</em>
<a name="11" href="#11">11</a>  <em class="comment"> * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for</em>
<a name="12" href="#12">12</a>  <em class="comment"> * more details.</em>
<a name="13" href="#13">13</a>  <em class="comment"> * </em>
<a name="14" href="#14">14</a>  <em class="comment"> * You should have received a copy of the GNU General Public License along with</em>
<a name="15" href="#15">15</a>  <em class="comment"> * this program; if not, write to the Free Software Foundation, Inc., 59 Temple</em>
<a name="16" href="#16">16</a>  <em class="comment"> * Place, Suite 330, Boston, MA 02111-1307 USA</em>
<a name="17" href="#17">17</a>  <em class="comment"> */</em>
<a name="18" href="#18">18</a>  <strong>package</strong> easyaccept.maven;
<a name="19" href="#19">19</a>  
<a name="20" href="#20">20</a>  <strong>import</strong> <strong>static</strong> java.util.Arrays.asList;
<a name="21" href="#21">21</a>  <strong>import</strong> <strong>static</strong> org.codehaus.plexus.util.StringUtils.join;
<a name="22" href="#22">22</a>  
<a name="23" href="#23">23</a>  <strong>import</strong> java.io.File;
<a name="24" href="#24">24</a>  <strong>import</strong> java.util.ArrayList;
<a name="25" href="#25">25</a>  <strong>import</strong> java.util.List;
<a name="26" href="#26">26</a>  
<a name="27" href="#27">27</a>  <strong>import</strong> org.apache.maven.plugin.AbstractMojo;
<a name="28" href="#28">28</a>  <strong>import</strong> org.apache.maven.plugin.MojoFailureException;
<a name="29" href="#29">29</a>  
<a name="30" href="#30">30</a>  <em>/**</em>
<a name="31" href="#31">31</a>  <em> * Helper class use to call a java Main in an external process.</em>
<a name="32" href="#32">32</a>  <em> * </em>
<a name="33" href="#33">33</a>  <em> * @author Jonhnny Weslley</em>
<a name="34" href="#34">34</a>  <em> */</em>
<a name="35" href="#35">35</a>  <strong>public</strong> <strong>class</strong> <a href="../../easyaccept/maven/JavaCommand.html">JavaCommand</a> {
<a name="36" href="#36">36</a>  
<a name="37" href="#37">37</a>      <strong>private</strong> <strong>final</strong> AbstractMojo mojo;
<a name="38" href="#38">38</a>  
<a name="39" href="#39">39</a>      <strong>private</strong> <strong>final</strong> List&lt;String> env;
<a name="40" href="#40">40</a>      <strong>private</strong> <strong>final</strong> List&lt;String> args;
<a name="41" href="#41">41</a>      <strong>private</strong> <strong>final</strong> List&lt;String> jvmArgs;
<a name="42" href="#42">42</a>      <strong>private</strong> <strong>final</strong> List&lt;String> classpath;
<a name="43" href="#43">43</a>      <strong>private</strong> String javaExec;
<a name="44" href="#44">44</a>      <strong>private</strong> <strong>final</strong> String mainClassName;
<a name="45" href="#45">45</a>  
<a name="46" href="#46">46</a>      <strong>public</strong> <a href="../../easyaccept/maven/JavaCommand.html">JavaCommand</a>(AbstractMojo aMojo, String aMainClassName) {
<a name="47" href="#47">47</a>          javaExec = System.getProperty(<span class="string">"java.home"</span>);
<a name="48" href="#48">48</a>          <strong>if</strong> (javaExec == <strong>null</strong>) {
<a name="49" href="#49">49</a>              javaExec = System.getenv(<span class="string">"JAVA_HOME"</span>);
<a name="50" href="#50">50</a>              <strong>if</strong> (javaExec == <strong>null</strong>) {
<a name="51" href="#51">51</a>                  <strong>throw</strong> <strong>new</strong> IllegalStateException(<span class="string">"Couldn't locate java, try setting JAVA_HOME environment variable."</span>);
<a name="52" href="#52">52</a>              }
<a name="53" href="#53">53</a>          }
<a name="54" href="#54">54</a>          javaExec += File.separator + <span class="string">"bin"</span> + File.separator + <span class="string">"java"</span>;
<a name="55" href="#55">55</a>  
<a name="56" href="#56">56</a>          mojo = nonNull(aMojo);
<a name="57" href="#57">57</a>          mainClassName = nonNull(aMainClassName);
<a name="58" href="#58">58</a>          env = <strong>new</strong> ArrayList&lt;String>();
<a name="59" href="#59">59</a>          args = <strong>new</strong> ArrayList&lt;String>();
<a name="60" href="#60">60</a>          jvmArgs = <strong>new</strong> ArrayList&lt;String>();
<a name="61" href="#61">61</a>          classpath = <strong>new</strong> ArrayList&lt;String>();
<a name="62" href="#62">62</a>          <strong>for</strong> (String key : System.getenv().keySet()) {
<a name="63" href="#63">63</a>              env.add(key + <span class="string">"="</span> + System.getenv(key));
<a name="64" href="#64">64</a>          }
<a name="65" href="#65">65</a>      }
<a name="66" href="#66">66</a>  
<a name="67" href="#67">67</a>      <strong>public</strong> <a href="../../easyaccept/maven/JavaCommand.html">JavaCommand</a> addEnvVar(String key, String value) {
<a name="68" href="#68">68</a>          env.add(nonNull(key) + <span class="string">"="</span> + nonNull(value));
<a name="69" href="#69">69</a>          <strong>return</strong> <strong>this</strong>;
<a name="70" href="#70">70</a>      }
<a name="71" href="#71">71</a>  
<a name="72" href="#72">72</a>      <strong>public</strong> <a href="../../easyaccept/maven/JavaCommand.html">JavaCommand</a> addJvmArgs(String... args) {
<a name="73" href="#73">73</a>      	<strong>if</strong> (args == <strong>null</strong>) {
<a name="74" href="#74">74</a>      		<strong>return</strong> <strong>this</strong>;
<a name="75" href="#75">75</a>      	}
<a name="76" href="#76">76</a>          <strong>return</strong> addJvmArgs(asList(args));
<a name="77" href="#77">77</a>      }
<a name="78" href="#78">78</a>  
<a name="79" href="#79">79</a>      <strong>public</strong> <a href="../../easyaccept/maven/JavaCommand.html">JavaCommand</a> addJvmArgs(List&lt;String> args) {
<a name="80" href="#80">80</a>     		<strong>this</strong>.jvmArgs.addAll(nonNull(args));
<a name="81" href="#81">81</a>          <strong>return</strong> <strong>this</strong>;
<a name="82" href="#82">82</a>      }
<a name="83" href="#83">83</a>  
<a name="84" href="#84">84</a>      <strong>public</strong> <a href="../../easyaccept/maven/JavaCommand.html">JavaCommand</a> addClasspath(String... classpath) {
<a name="85" href="#85">85</a>      	<strong>if</strong> (classpath == <strong>null</strong>) {
<a name="86" href="#86">86</a>      		<strong>return</strong> <strong>this</strong>;
<a name="87" href="#87">87</a>      	}
<a name="88" href="#88">88</a>          <strong>return</strong> addClasspath(asList(classpath));
<a name="89" href="#89">89</a>      }
<a name="90" href="#90">90</a>  
<a name="91" href="#91">91</a>      <strong>public</strong> <a href="../../easyaccept/maven/JavaCommand.html">JavaCommand</a> addClasspath(List&lt;String> classpath) {
<a name="92" href="#92">92</a>         	<strong>this</strong>.classpath.addAll(nonNull(classpath));
<a name="93" href="#93">93</a>          <strong>return</strong> <strong>this</strong>;
<a name="94" href="#94">94</a>      }
<a name="95" href="#95">95</a>  
<a name="96" href="#96">96</a>      <strong>public</strong> <a href="../../easyaccept/maven/JavaCommand.html">JavaCommand</a> addArgs(String... args) {
<a name="97" href="#97">97</a>      	<strong>if</strong> (args == <strong>null</strong>) {
<a name="98" href="#98">98</a>      		<strong>return</strong> <strong>this</strong>;
<a name="99" href="#99">99</a>      	}
<a name="100" href="#100">100</a>         <strong>return</strong> addArgs(asList(args));
<a name="101" href="#101">101</a>     }
<a name="102" href="#102">102</a> 
<a name="103" href="#103">103</a>     <strong>public</strong> <a href="../../easyaccept/maven/JavaCommand.html">JavaCommand</a> addArgs(List&lt;String> args) {
<a name="104" href="#104">104</a>        	<strong>this</strong>.args.addAll(nonNull(args));
<a name="105" href="#105">105</a>         <strong>return</strong> <strong>this</strong>;
<a name="106" href="#106">106</a>     }
<a name="107" href="#107">107</a> 
<a name="108" href="#108">108</a>     <strong>public</strong> <strong>void</strong> run(<strong>boolean</strong> displayCommand) throws Exception {
<a name="109" href="#109">109</a> 
<a name="110" href="#110">110</a>         List&lt;String> command = buildCommand();
<a name="111" href="#111">111</a>         <strong>if</strong> (displayCommand) {
<a name="112" href="#112">112</a>             mojo.getLog().info(<span class="string">"command: "</span> + <span class="string">" "</span> + join(command.iterator(), <span class="string">" "</span>));
<a name="113" href="#113">113</a>         } <strong>else</strong> <strong>if</strong> (mojo.getLog().isDebugEnabled()) {
<a name="114" href="#114">114</a>             mojo.getLog().debug(<span class="string">"command: "</span> + <span class="string">" "</span> + join(command.iterator(), <span class="string">" "</span>));
<a name="115" href="#115">115</a>         }
<a name="116" href="#116">116</a> 
<a name="117" href="#117">117</a>         ProcessBuilder pBuilder = <strong>new</strong> ProcessBuilder(command);
<a name="118" href="#118">118</a>         Process process = pBuilder.start();
<a name="119" href="#119">119</a>         (<strong>new</strong> <a href="../../easyaccept/maven/StreamConnector.html">StreamConnector</a>(process.getInputStream())).connectTo(System.out);
<a name="120" href="#120">120</a>         (<strong>new</strong> <a href="../../easyaccept/maven/StreamConnector.html">StreamConnector</a>(process.getErrorStream())).connectTo(System.err);
<a name="121" href="#121">121</a> 
<a name="122" href="#122">122</a>         <strong>final</strong> <strong>int</strong> exitValue = process.waitFor();
<a name="123" href="#123">123</a>         <strong>if</strong> (exitValue != 0) {
<a name="124" href="#124">124</a>             <strong>throw</strong> <strong>new</strong> MojoFailureException(<span class="string">"command line returned non-zero value: "</span> + exitValue);
<a name="125" href="#125">125</a>         }
<a name="126" href="#126">126</a>     }
<a name="127" href="#127">127</a> 
<a name="128" href="#128">128</a>     <strong>private</strong> List&lt;String> buildCommand() {
<a name="129" href="#129">129</a>         <strong>final</strong> ArrayList&lt;String> command = <strong>new</strong> ArrayList&lt;String>();
<a name="130" href="#130">130</a>         command.add(javaExec);
<a name="131" href="#131">131</a>         command.addAll(jvmArgs);
<a name="132" href="#132">132</a>         command.add(<span class="string">"-classpath"</span>);
<a name="133" href="#133">133</a>         command.add(join(classpath.iterator(), File.pathSeparator));
<a name="134" href="#134">134</a>         command.add(mainClassName);
<a name="135" href="#135">135</a>         command.addAll(args);
<a name="136" href="#136">136</a>         <strong>return</strong> command;
<a name="137" href="#137">137</a>     }
<a name="138" href="#138">138</a> 
<a name="139" href="#139">139</a>     <strong>private</strong> &lt;T> T nonNull(T object) {
<a name="140" href="#140">140</a>     	<strong>if</strong> (object == <strong>null</strong>) {
<a name="141" href="#141">141</a>     		<strong>throw</strong> <strong>new</strong> NullPointerException();
<a name="142" href="#142">142</a>     	}
<a name="143" href="#143">143</a>     	<strong>return</strong> object;
<a name="144" href="#144">144</a>     }
<a name="145" href="#145">145</a> 
<a name="146" href="#146">146</a> }
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